CN210156030U

CN210156030U - Display device and electronic equipment

Info

Publication number: CN210156030U
Application number: CN201920379175.6U
Authority: CN
Inventors: 朱文龙; 周扬; 林峰
Original assignee: Shenzhen Fushi Technology Co Ltd
Current assignee: Shenzhen Fushi Technology Co Ltd
Priority date: 2019-03-23
Filing date: 2019-03-23
Publication date: 2020-03-17
Anticipated expiration: 2029-03-23

Abstract

The utility model provides a display device, it has the sensing zone that is used for the outside object of sensing to define on it. The display device comprises a display panel, a backlight module and a sensing module. The sensing module is arranged below the backlight module to transmit and receive sensing light through the backlight module and the display panel so as to sense an external object, and comprises an emitting unit, a receiving unit and a base, wherein the base comprises a top surface and a bottom surface which are oppositely arranged, a bottom surface accommodating groove is formed in the bottom surface, a sensing through hole penetrating through the bottom surface is formed in the bottom surface accommodating groove, a top surface accommodating groove is formed in the top surface, the emitting unit is arranged in the top surface accommodating groove and emits the sensing light to the sensing area, and the receiving unit is arranged in the bottom surface accommodating groove so as to receive the reflected sensing light through the sensing through hole. The utility model also provides an electronic equipment who uses this display device.

Description

Display device and electronic equipment

Technical Field

The utility model belongs to the technical field of optics, especially, relate to a display device and electronic equipment.

Background

The existing electronic equipment often needs to set a functional module on a main viewing surface in order to realize multiple functions, for example: set up the fingerprint identification module in order to adopt the fingerprint identification function to open electronic equipment on its main face of looking. However, these functional modules are usually required to be separately disposed outside the display area of the electronic device, so as to occupy the display area of the electronic device, which affects the overall appearance of the main viewing surface of the electronic device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a display device and electronic equipment are in order to solve above-mentioned technical problem.

Embodiments of the present invention provide a display device, which has a sensing region defined thereon for sensing an external object. The display device comprises a display panel, a backlight module and a sensing module. The sensing module is arranged below the backlight module to transmit and receive sensing light through the backlight module and the display panel so as to sense an external object. The sensing module comprises an emitting unit, a receiving unit and a base, wherein the base comprises a top surface and a bottom surface which are oppositely arranged, a bottom surface accommodating groove is formed in the bottom surface, a sensing through hole penetrating through the bottom surface is formed in the bottom surface accommodating groove, a top surface accommodating groove is formed in the top surface, the emitting unit is arranged in the top surface accommodating groove and emits sensing light to the sensing area, and the receiving unit is arranged in the bottom surface accommodating groove and receives the reflected sensing light through the sensing through hole.

In certain embodiments, the base is made of a hard material that is opaque to light.

In some embodiments, the color of the base is black.

In some embodiments, the inner surface of the top surface receiving groove is coated with a reflective material or formed with a microstructure having a reflective effect.

In some embodiments, the top surface receiving groove is formed around the opening of the sensing through hole.

In some embodiments, the top surface receiving grooves are symmetrically distributed about the opening of the sensing through hole.

In some embodiments, the top surface accommodating groove includes an installation surface for installing the emission unit, the installation surface is inclined at a preset angle with respect to the top surface, and the inclination angle of the installation surface changes within a preset range to correspondingly enable the irradiation range of the chief ray with the highest luminous intensity in the light rays emitted by the emission unit to cover the whole sensing region.

In some embodiments, the preset inclination angle of the mounting surface is such that the principal ray of the emission unit irradiates the boundary of the sensing region on the side farthest from the emission unit.

In some embodiments, the preset inclination angle of the mounting surface is such that a principal ray of the emission unit irradiates a boundary of a nearest side of the sensing region from the emission unit.

In some embodiments, the top surface accommodating groove includes a guiding portion and an installation portion, the depth of the guiding portion is gradually deepened from the vicinity of the opening of the sensing through hole along the radial direction of the base towards the direction away from the sensing through hole, the installation portion is provided at the end of the guiding portion farthest from the sensing through hole, and the installation surface is formed in the installation portion.

In some embodiments, the sensing light is infrared or near infrared light having a wavelength ranging from 750nm to 1000 nm.

In some embodiments, the emission unit is selected from one or a combination of LEDs, OLEDs, VCSELs, and LDs.

An embodiment of the utility model provides an electronic equipment, it includes that display device and setting are in the sensing module of display device below. A sensing region for sensing an external object is defined on the display device. The sensing module transmits or receives sensing light through the display device to sense an external object. The sensing module comprises an emitting unit, a receiving unit and a base, wherein the base comprises a top surface and a bottom surface which are oppositely arranged, a bottom surface accommodating groove is formed in the bottom surface, a sensing through hole penetrating through the bottom surface is formed in the bottom surface accommodating groove, a top surface accommodating groove is formed in the top surface, the emitting unit is arranged in the top surface accommodating groove and emits sensing light to the sensing area, and the receiving unit is arranged in the bottom surface accommodating groove and receives the reflected sensing light through the sensing through hole.

In some embodiments, the display device further comprises a middle frame, the middle frame is used for bearing the display device, a mounting through hole is formed in the middle frame corresponding to the sensing region, the sensing module is arranged in the mounting through hole, and the top surface of the base is tightly attached to the bottom of the display device at a position corresponding to the sensing region.

The utility model discloses embodiment provides a display device can launch and/or receive sensing light's sensing module through setting up in its below in order to realize original sensing function in display device's display area, need not occupy electronic equipment's display area, is favorable to improving electronic equipment's screen proportion, promotes the whole impression of looking at the main face of electronic equipment. In addition, the base of the sensing module is used for isolating the transmitting unit from the receiving unit through the sensing through hole structure, so that the interference of sensing light rays directly transmitted by the transmitting unit to the receiving unit is reduced, and the sensing accuracy is improved.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

Fig. 1 is a schematic front view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a part of the schematic cross-sectional view of the electronic device of fig. 1 along line II-II, the electronic device including a sensing module.

Fig. 3 is a schematic perspective view of the sensing module shown in fig. 2.

Fig. 4 is a schematic cross-sectional view of the sensor module shown in fig. 3 taken along line IV-IV.

Fig. 5 is a schematic diagram of the variation of the light emitting intensity of the light source of the sensing module in fig. 2 with the light emitting angle.

Fig. 6 is an embodiment of a light emitting angle setting of a light source of the sensing module shown in fig. 2.

Fig. 7 is a modified embodiment of the light emitting angle setting of the light source of the sensor module shown in fig. 2.

Fig. 8 is another part of the schematic cross-sectional view of the electronic device shown in fig. 1 along the line II-II, the electronic device further comprising a middle frame.

Fig. 9 is a schematic perspective view of the sensor module according to a modified embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any order or number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship or combination of two or more elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, only the components and settings of a specific example are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are intended in order to facilitate and clarify the invention, and in no event is it intended that any particular relationship between the various embodiments and/or configurations discussed herein be so repeated. In addition, the various specific processes and materials provided in the following description of the present invention are only examples for implementing the technical solution of the present invention, but one of ordinary skill in the art should recognize that the technical solution of the present invention can also be implemented by other processes and/or other materials not described below.

Further, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other structures, components, and so forth. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring aspects of the invention.

Referring to fig. 1 and fig. 2 together, an embodiment of the present invention provides an electronic device 1, such as a mobile phone, a notebook computer, a tablet computer, a touch interactive screen, a door, a vehicle, a robot, an automatic numerical control machine, and the like. The electronic device 1 includes a display device 10 and a sensing module 12 disposed below the display device 10. The electronic device 1 is configured to correspondingly execute a corresponding function according to a sensing result of the sensing module 12. The corresponding functions include but are not limited to unlocking after identifying the identity of the user, paying, starting a preset application program, avoiding obstacles, and judging any one or more of the emotion and the health condition of the user by utilizing a deep learning technology after identifying the facial expression of the user.

The display device 10 includes a display panel 102 and a backlight module 104. The backlight module 104 is disposed below the display panel 102 and configured to provide backlight light to the display panel 102. The sensing module 12 is disposed below the backlight module 104. The sensing module 12 can emit and/or receive sensing light through the backlight module 104 and the display panel 102 of the display device 10. The sensing light emitted from the sensing module 12 is transmitted through the backlight module 104 and the display panel 102 to illuminate an external object outside the electronic device 1. The sensing light is reflected by an external object and then received by the sensing module 12 through the display panel 102 and the backlight module 104 for sensing. In this embodiment, the sensing light reflected by the external object may carry the biometric information of the external object, such as: the external object is a finger of a user, and the biometric information is fingerprint information of the user. The sensing module 12 is, for example, a fingerprint recognition module, and can acquire fingerprint information of an external object by sensing reflected sensing light for recognition.

It is understood that in other alternative embodiments, the sensing light may not carry the biometric information of the external object, and may be directly used for sensing the approach of the external object. For example: the sensing module 12 senses that the sensing light exceeding the preset threshold is reflected back, and then it is considered that an external object is close to the electronic device 1.

A sensing region 105 is defined in the display region of the display panel 102. The external object is in contact with the display panel 102 in the sensing region 105 to reflect the sensing light for sensing. The sensing module 12 is disposed below the backlight module 104 and corresponding to the sensing region 105. The sensing module 12 includes a transmitting unit 122, a receiving unit 124 and a base 126. The emission unit 122 can emit sensing light to an external image through the display device 10. The receiving unit 124 can receive the sensing light reflected by the external object through the display device 10 for sensing. The transmitting unit 122 and the receiving unit 124 are disposed on the base 126. The base 126 is disposed below the backlight module 104 at a position corresponding to the sensing region 105. In this embodiment, the sensing light is used for sensing a fingerprint. The sensing light may be infrared or near infrared wavelength light, and the wavelength range is 750nm (Nanometer) to 1000 nm. The Emitting unit 122 may be a Light Emitting Diode (LED). The receiving unit 124 includes a lens 1240 and an image sensor 1242. The lens 1240 images the reflected sensing light in focus on the image sensor 1242 for fingerprint sensing.

It will be appreciated that in other alternative embodiments, the emitting unit 122 may also be other types of light emitting sources, such as: an Organic Light Emitting Diode (OLED), a Vertical Cavity Surface Emitting Laser (VCSEL), and a Laser Diode (LD). The receiving unit 124 may omit the lens 1240 and use pinhole imaging principles to directly image on the image sensor 1242. Alternatively, the receiving unit 124 does not need to image when proximity sensing is performed, and the receiving unit 124 may use a Photodiode (PD) instead of the image sensor 1242 for sensing.

Referring to fig. 3 and 4, the base 126 is used for supporting the emitting unit 122 and the receiving unit 124, and shielding the sensing light directly emitted from the emitting unit 122 from the receiving unit 124 received therein, so as to prevent the sensing light from entering the receiving unit 124 and causing interference to sensing. The base 126 includes a top surface 1260 and a bottom surface 1262 that are oppositely disposed. The top surface 1260 is disposed towards the backlight assembly 104. The bottom surface 1262 faces away from the top surface 1260, and is farther from the backlight module 104 than the top surface 1260. The bottom surface 1262 is provided with a bottom surface receiving groove 1263. A sensing through hole 1264 penetrating to the top surface 1260 is formed in the bottom surface accommodating groove 1263. The receiving unit 124 is disposed in the bottom surface container 1263, and receives the sensing light reflected by the external object through the sensing through hole 1264. Specifically, the receiving unit 124 may further include a circuit board 1244. The image sensor 1242 and the lens 1240 are disposed on the circuit board 1244. The bottom receiving groove 1263 is shaped to correspond to the circuit board 1244 or is larger than the circuit board 1244, so as to receive the circuit board 1244. The lens 1240 can extend into the sensing through hole 1264 or align with the sensing through hole 1264 outside the sensing through hole 1264 to focus the sensing light reflected by the external object.

A plurality of top surface receiving grooves 1265 are formed in the top surface 1260 around the opening of the sensing through hole 1264. That is, the top surface container 1265 may be opened around the opening of the sensing through hole 1264. Specifically, the top surface receiving grooves 1265 are symmetrically distributed about the opening of the sensing through hole 1264, and the symmetrical manner includes, but is not limited to, rotational symmetry and central symmetry. The emitting unit 122 may include a plurality of light sources 1220, such as: an LED light source. The light sources 1220 are respectively and correspondingly accommodated in the top surface accommodating grooves 1265. Each top surface receiving channel 1265 includes a mounting surface 1266. The mounting surface 1266 is used to mount the light source 1220. The light source 1220 is disposed on the mounting surface 1266 to emit sensing light toward the sensing region 105 of the display device 10 above the base 126. The mounting surface 1266 is angled relative to the top surface 1260 of the base 126. The inclination angle of the mounting surface 1266 depends on the position of the base 126 relative to the sensing region 105 (see fig. 2) and the distance between the base 126 and the backlight module 104 above. In this embodiment, the top surface 1260 is planar.

The base 126 may be made of a hard material that is opaque to light, such as: steel, aluminum alloys, zinc alloys, stainless steel alloys, ceramics, plastics, and the like. The base 126 may also be black in color to enhance the absorption of stray light by the base 126. A portion of the base 126 between the sensing through hole 1264 and the top surface receiving groove 1265 forms a retaining wall, which can be used as a light shielding structure to prevent the sensing light directly emitted by the light source 1220 from entering the receiving unit 124 through the sensing through hole 1264 to interfere with sensing. The inner surface of the top surface container 1265 may also be coated with a reflective material to reflect the sensing light to the display device 10 (see fig. 2) above the base 126, so as to improve the utilization rate of the sensing light. In this embodiment, since the sensing light is infrared or near-infrared light, the reflective material is a material capable of reflecting infrared or near-infrared light.

It is understood that, in other modified embodiments, the inner surface of the top surface container groove 1265 may also be formed with a reflective microstructure, for example: a serrated reflective microstructure.

In the present embodiment, the top surface container 1265 includes a guide portion 1267 and a mounting portion 1268. The guide portion 1267 is shaped in a substantially triangular wedge shape, and the depth thereof gradually increases from the vicinity of the opening of the sensing through hole 1264 in a radial direction of the base 126 toward a direction away from the sensing through hole 1264. The mounting portion 1268 is opened at a distal end of the guide portion 1267 farthest from the sensing through hole 1264. The mounting portion 1268 is used to mount and fix the light source 1220. The mounting portion 1268 may be an angled rectangular channel that includes the mounting surface 1266 angled relative to the top surface 1260. The light source 1220 is fixedly attached to the attachment surface 1266, and a light emitting surface of the light source 1220 faces the guide portion 1267. The top surface 1260 is planar. The position of the light source 1220 in the light emitting direction is lower than the end of the retaining wall closest to the opening of the sensing through hole 1264, i.e. the end of the retaining wall farthest from the receiving unit 124. It can be understood that a predetermined distance is kept between the end of the guiding portion 1267 closest to the sensing through hole 1264 and the opening of the sensing through hole 1264, so that the area around the sensing through hole 1264 is kept as a plane parallel to the bottom of the display device 10, so that the base 126 can better closely adhere to the bottom of the display device 10 through the plane area around the sensing through hole 1264, and further, the surrounding stray light is prevented from entering the sensing through hole 1264 to interfere with sensing.

It is understood that, in other modified embodiments, the top surface accommodating groove 1265 may have other shapes as long as the light source 1220 can be inclined at a predetermined angle and can emit the sensing light to the sensing region 105 of the display device 10.

As shown in fig. 5, the light-emitting intensity of the sensing light emitted by the light source 1220 varies with the light-emitting angle, and the light emitted by the light source 1220 along the direction of the maximum light-emitting intensity is defined as the principal light. In this embodiment, the light source 1220 is an LED light source emitting near-infrared light. The light source 1220 has a light emitting angle ranging from 120 degrees. The light source 1220 emits light from the center in a vertical direction with a maximum light emission intensity, and the light emission intensity gradually decreases as the angle from the center increases within the light emission angle range. Therefore, the light emitted from the light source 1220 in the vertical direction from the center is defined as a principal ray. It is understood that in other alternative embodiments, the light source 1220 may have different distribution patterns of the light intensity. Alternatively, the light emitting intensity distribution of the emitted light can be changed into various forms according to actual requirements by disposing a lens structure at the light emitting surface of the light source 1220.

Referring to fig. 3 and fig. 6, the inclination angle of the light source 1220 can be varied such that the main light beam covers the entire sensing region 105 of the display device 10. That is, by adjusting the tilt angle, the irradiation position of the principal ray of the light source 1220 can be moved between the boundary of the sensing region 105 on the side farthest from the light source 1220 to the boundary of the sensing region 105 on the side closest to the light source 1220. It is understood that, in the present embodiment, the light sources 1220 are disposed on the mounting surface 1266 of the top surface container 1265, and the variation of the inclination angle of the light sources 1220 is achieved by changing the inclination angle of the mounting surface 1266.

In this embodiment, the emitting unit 122 includes four light sources 1220, which are symmetrically distributed about the opening of the sensing through hole 1264. Each two of the light sources 1220 are symmetrically distributed about the opening point of the sensing via 1264. The principal ray of the light source 1220 irradiates the boundary of the sensing region 105 at the side farthest from the light source 1220. The sensing light of each light source 1220 within a half of the light emitting angle range on one side of the main light can illuminate the sensing region 105. Sensing light rays within a half of the light-emitting angle range corresponding to each of the plurality of light sources 1220 which are symmetrically distributed are overlapped in the sensing region 105 to form the total intensity of the sensing light rays in the sensing region 105. The intensity of the sensing light emitted by any one of the light sources 1220 in the sensing region 105 gradually decreases from the boundary of the farthest side from the light source 1220 irradiated by the main light to the boundary of the nearest side from the light source 1220, and the intensity distribution of the sensing light irradiated by another light source 1220 which is point-symmetrically distributed with respect to the opening of the sensing through hole 1264 in the sensing region 105 is exactly opposite, so that the intensity distribution of the sensing light in the entire sensing region 105 is substantially uniform after the sensing light emitted by each pair of light sources 1220 which are point-symmetrically distributed is superimposed, which is beneficial to sensing and imaging.

Referring to fig. 7 and fig. 3, in another modified embodiment, the main light of the light source 1220 is irradiated to the boundary of the sensing region 105 at the side nearest to the light source 1220. Similar to the above embodiments, the sensing light of each light source 1220 within a half of the light emitting angle range on the other side of the main light is irradiated to the sensing region 105. The intensity distribution of the sensing light emitted into the sensing region 105 by another light source 1220 symmetrically distributed about the opening point of the sensing via 1264 is substantially opposite, so that the intensity of the sensing light within the sensing region 105 is uniformly distributed.

It is understood that in other variations, the chief ray of the light source 1220 may illuminate anywhere within the sensing region 105. Alternatively, the main light of the light source 1220 is irradiated outside the sensing region 105, but it is ensured that at least part of the light within the light-emitting angle range can be irradiated to the sensing region 105. At this time, the uniformity of the intensity of the sensing light over the entire sensing region 105 can be achieved by adaptive adjustment of the illumination angle of each light source 1220. Alternatively, the uniformity of the sensing light in the sensing region 105 can be moderately reduced on the premise of satisfying the sensing requirement.

In this embodiment, the sensing through-hole 1264 of the base 126 opens at a central location on the top surface 1260 of the base 126. The base 126 is disposed under the display device 10 at a position directly opposite the sensing region 105, and the sensing through-hole 1264 is open aligned with the center of the sensing region 105. Since the light sources 1220 are symmetrically distributed about the opening of the sensing through hole 1264, and accordingly the light sources 1220 are also symmetrically distributed about the center of the sensing region 105, it is advantageous for the sensing light emitted by the light sources 1220 to uniformly irradiate the sensing region 105.

It is understood that, referring to fig. 2, in other modified embodiments, the base 126 may not face the sensing region 105, the intensity distribution of the sensing light reflected by the external object in the sensing through hole 1264 is not uniform, the sensing light in the sensing through hole 1264 near the sensing region 105 is stronger, and the sensing light in other positions is weaker, but the off-axis lens 1240 may still be used to image the sensing light. Alternatively, an optical system is provided between the base 126 and the bottom of the display device 10, such as: a lens group or a reflective element, etc. to guide the whole sensing light reflected by the external object into the sensing through hole 1264 for sensing.

As shown in fig. 8, the electronic device 1 further includes a middle frame 14. The middle frame 14 is used for carrying the display panel 102 and the backlight module 104. The middle frame 14 has a mounting hole 140 corresponding to the sensing region 105 of the display device 10. The sensing module 12 is disposed in the mounting through hole 140. The top surface 1260 of the base 126 is tightly attached to the bottom of the backlight module 104 at a position corresponding to the sensing region 105, so as to prevent the sensing light directly emitted by the light source 1220 or other stray light from entering the sensing through hole 1264 to interfere with sensing. The base 126 may be secured to the frame by a retaining structure, such as: spacing post, screw thread etc. carry out the block, perhaps fix through the viscose, perhaps fix through modes such as set up the bearing board in base 126 bottom in installation through-hole 140, the utility model discloses do not specifically prescribe a limit to here. It is understood that in other modified embodiments, the top surface 1260 of the base 126 may not directly attach to the bottom of the backlight assembly 104, but may be attached to the bottom of the backlight assembly 104 through a buffer, such as: a gasket, etc. closely attached to the bottom of the backlight module 104.

It is understood that in other modified embodiments, only the transmitting unit 122 may be disposed on the base 126, and the receiving unit 124 may be disposed outside the base 126. In this case, the base 126 may be provided with only the top surface container 1265 to install the emitting unit 122. Alternatively, only the receiving unit 124 may be disposed on the base 126, and the transmitting unit 122 may be disposed outside the base 126. In this case, the base 126 may be provided with only the bottom receiving groove 1263 to install the receiving unit 124.

As shown in fig. 9, in other modified embodiments, the emitting unit 122 includes two light sources 1220. The two light sources 1220 are point-symmetrically distributed about the sensing via 1264. The structure of the base 126 is substantially the same as that of the present embodiment, and the differences are: the base 126 is provided with only a pair of top surface accommodating grooves 1265 symmetrically distributed about the openings of the sensing through holes 1264 corresponding to the two light sources 1220, and the positions corresponding to the top surface accommodating grooves 1265 provided by the other pair of light sources 1220 are hollowed out to the bottom surface accommodating grooves 1263, so as to further realize the light weight of the sensing module 12 under the condition that the number of the light sources 1220 is small.

Electronic equipment 1 is through setting up sensing module 12 that can launch and/or receive sensing light in order to realize original sensing function in display area 103 of display device 10 below display device 10, need not occupy electronic equipment 1's display area 103 area, is favorable to improving electronic equipment 1's screen ratio, promotes the whole impression of electronic equipment 1 main viewing surface. In addition, the base 126 of the sensing module 12 isolates the emitting unit 122 and the receiving unit 124 from each other by providing the sensing through hole 1264, so that interference of the sensing light directly emitted by the emitting unit 122 to the receiving unit 124 is reduced, and the sensing accuracy is improved.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A display device having a sensing region defined thereon for sensing an external object, the display device comprising: the display device comprises a display panel, a backlight module and a sensing module, wherein the sensing module is arranged below the backlight module to transmit and receive sensing light through the backlight module and the display panel so as to sense an external object, the sensing module comprises an emitting unit, a receiving unit and a base, the base comprises a top surface and a bottom surface which are oppositely arranged, a bottom surface accommodating groove is formed in the bottom surface, a sensing through hole penetrating through the bottom surface is formed in the bottom surface accommodating groove, a top surface accommodating groove is formed in the top surface, the emitting unit is arranged in the top surface accommodating groove and emits the sensing light to the sensing area, and the receiving unit is arranged in the bottom surface accommodating groove so as to receive the reflected sensing light through the sensing through hole.

2. The display apparatus of claim 1, wherein the base is made of a hard material that is opaque to light.

3. The display device of claim 1, wherein the color of the base is black.

4. The display device as claimed in claim 1, wherein an inner surface of the top surface receiving groove is coated with a reflective material or formed with a micro structure having a reflective function.

5. The display device according to claim 1, wherein the top surface accommodating groove is opened around the sensing through hole opening.

6. The display device according to claim 1, wherein the top surface receiving grooves are symmetrically distributed about the opening of the sensing through hole.

7. The display device according to claim 1, wherein the top surface accommodating groove comprises an installation surface for installing the emission unit, the installation surface is inclined at a preset angle relative to the top surface, and the inclination angle of the installation surface is changed within a preset range corresponding to a range of the main light ray with the highest luminous intensity in the light rays emitted by the emission unit covering the whole sensing region.

8. The display device of claim 7, wherein: the preset inclination angle of the mounting surface enables the principal ray of the emission unit to irradiate the boundary of the sensing area at the side farthest from the emission unit.

9. The display device of claim 7, wherein: the preset inclination angle of the mounting surface enables the principal ray of the emission unit to irradiate the boundary of the sensing area at the side nearest to the emission unit.

10. The display device of claim 7, wherein: the top surface storage tank includes guide portion and installation department, the degree of depth of guide portion is deepened gradually by near the radial orientation of sensing through-hole opening along the base towards the direction of keeping away from the sensing through-hole, the installation department is seted up guide portion is from the end that the sensing through-hole is furthest, be formed with in the installation department the installation face.

11. The display device of claim 1, wherein: the sensing light is infrared or near infrared light, and the wavelength range is 750nm to 1000 nm.

12. The display device of claim 1, wherein: the emitting unit is selected from one or a combination of several of LED, OLED, VCSEL and LD.

13. An electronic device, characterized in that: the display device comprises the display device as claimed in any one of claims 1 to 12, and the electronic equipment executes corresponding functions according to sensing results of the sensing module.

14. The electronic device of claim 13, wherein: the display device further comprises a middle frame, the middle frame is used for bearing the display device, mounting through holes are formed in the middle frame corresponding to the sensing regions, the sensing module is arranged in the mounting through holes, and the top surface of the base is tightly attached to the position, corresponding to the sensing regions, on the bottom of the display device.